Grace tries to make amends to Frankie, Sol gives Robert a taste of his own medicine, and Brianna and Barry reach a turning point in their relationship.

Grace's loyalties are tested as she and Frankie face the Sharks. Robert scrambles to recoup the money he donated. Bud meets his long-lost cousin.

Grace and Frankie prepare for their pitch, but their prototype is missing. Robert keeps a secret from Sol. Brianna gets an appealing offer.

Grace's plan for a relaxing spa day backfires. Frankie tries to find Joan-Margaret a husband. Robert hosts a fundraiser to save the community theater.

Frankie's enjoying having two men in her life, but Grace warns her it won't end well. Allison and Sol encourage Bud to get a DNA test.

Grace and Frankie introduce Jack to Nick, hoping they can all go on vacation together. Meanwhile, Barry finally gets his short-rib double date.

Grace wants to leverage Jack's celebrity connections ... and Sol and Robert realize they've met him before. Bud tries to prove he's over Jessica.

Robert's fussing irritates Sol. Barry presses Brianna and Mallory to make up. Frankie's date with Jack inspires a marketing strategy for the Rise Up.

Grace worries that Nick isn't satisfied with their sex life. Sol decides to keep his diagnosis a secret, and Coyote comes clean about Jessica.

Robert and Sol grapple with a health scare, while Grace's bad knee sparks a new business idea. Coyote connects with Bud's ex-girlfriend.

Grace's insecurities flare at a lavish fundraiser, where Frankie gets swept up in a silent auction. Sol hosts a game night to distract a worried Robert.

While Frankie tries to adjust to living alone, Grace arranges a family dinner that takes an awkward turn. Robert and Sol plan a honeymoon trip.

Frankie is stunned by Grace's news, but she buries her feelings -- until everyone gathers together to send off Bud and Allison.